Don't think she is the former MUNCY, even if rebuilt for ocean service:
And LR 1956 has her still listed with machinery aft!
Probably no ship named RO****EN at all.
Where does this identification come from?
It's certainly not the former MUNCY. I've posted a photo of her here :-http://www.shipsnostalgia.com/gallery/showphoto.php/photo/262910/title/ro****en/cat/510
Another RO****EN was built in 1925, and became FOGDO of A/B Rex in 1942, going for breaking in 1960, and she can be discounted.
TUDOR PRINCE of 1884 sailed as RO****EN between 1909 and 1935, which is nearer the timeframe of the photo, but she was 1,521 grt., which seems rather smaller than the vessel depicted here. Unfortunately I can find no illustration of her.
Nordström & Thulin Co named at least one ship Ro****en(=area in Stockholm arkipelago)
this one(diesel) was nicknamed Skräck****en(terriefied)due to machinery standards,by engine crews.sic.Good feeder though.
I have no doubt that this vessel is a Leyland Line ship. She is moored at the pier used by Leyland at Boston. I have a photo of WINFREDIAN-1899 from the same spot. However she in not WINFREDIAN, but as best I can identify her as CALIFORNIAN-1902. If that is correct, it is the best pic I have seen of this vessel of TITANIC fame. "The ship that stood still".